Final answer:
Seeta got 250 marks out of 500, which is 50%.
Step-by-step explanation:
To convert Seeta's marks into a percentage, we need to divide her marks by the total marks she could have obtained and then multiply by 100.
So, Seeta got 250 marks out of 500. We divide 250 by 500 to get 0.5.
Then, we multiply 0.5 by 100 to get the percentage. So, Seeta got 50%.